列车自动防护系统研究

I毕业设计（论文）设计（论文）题目：列车自动防护系统研究学院名称：电子与信息工程学院专业：电子科学与技术班级：电科082姓名：张步兵学号08401090230指导教师：安鹏职称副教授定稿日期：2012年04月15日I列车自动防护系统研究摘要现今，许多国家的铁路运输情况发生了很大的变化。一些国家的铁路网十分繁忙，有很高的交通密度和多样的轨迹，而且铁路构造也变得十分复杂。新的传信系统和ATP设备被应用。随着这些改变，新的问题和挑战也应运而生[1]。列车自动防护系统即ATP是列车自动控制系统的一部分，它的作用是确保列车快速运行的安全。ATP主要由车载设备和轨旁电路组成。轨旁电路的功能是检测轨道的空闲和占用，并把数据发送给车载设备。车载设备接收轨旁电路的数据，通过控制计算机的计算生成列车的速度曲线，并在人际交互界面上显示最大允许速度，实际速度，目标距离，目标速度，车门指令等数据。当列车运行速度大于最大允许速度时，若在规定时间内未降到最大允许速度以下则实施紧急制动。由于车载设备在列车防护方面具有突出作用，因此基于各种类型系统的避错技术和容错技术应运而生，使列车运行的可靠性与安全性大幅提升，本文介绍的二乘三取二就是一种突出的系统结构，并在此基础上设计了一个简易车载设备。关键词：列控,自动,防护,ATP,车载设备,轨旁电路,二乘三取二,冗余IIRESEARCHOFTHEAUTOMATICTRAINPROTECTIONABSTRACTToday,therailwaytransportsituationofmanycountrieshaschangedgreatly.Someofthenationalrailwaynetworkisverybusy,hightrafficdensityandvarietyoftracks,andrailwayconstructoralsobecomeverycomplex.ThenewmessagingsystemandATPequipmentisapplied.Withthesechanges,newproblemsandchallengeshaveemerged.AutomatictrainprotectionsystemalsocalledATP,anditisapartoftheAutomatictraincontrolsystemtoensurethesafetyandspeedoftherunningtrain.ATPismainlymadeupoftheon-boardequipmentandtracksidecircuitcomponent.Thefunctionofthetracksidecircuitistotestpossessionandleisureofthetrack,andsentdatetotheon-boardequipment.Theon-boardequipmentreceivingdatafromtracksidecircuit,andgeneratedthecalculationofthecurveofthespeedthroughthecontrolcenter.Anddisplaythemaximumallowedspeed,theactualspeed,thetargetrange,targetspeed,thedoorinstructionsetcdataininterpersonalinteractioninterfacesimultaneously.Whenthetrainrunningspeedisgreaterthanthemaximumallowedspeed,andifitcan'tslowdownthebiggestspeedlessthanthemaximumallowedspeedwithinthestipulatedtime,thenimplementinganemergencybrake.FortheprominentroleIIIwhichon-boardequipmenthasplaied,variouskindsofsystemsofavoidingthewrongtechnologyandfault-toleranttechniquesemerged,makeingthetrainoperationreliabilityandsafetydramatically.TheDouble3-vote-2model,whichthisarticleintroduced,isaprominentsystemstructure,andasimpleautomaticequipmentisdesignedbasedonthissystemstructure.KeyWords:traincontrol,automatic,protection,ATP,on-boardequipment,tracksidecircuit，double3-vote-2，redundanceIV目录摘要...................................................................................................................................................IABSTRACT......................................................................................................................................II目录..................................................................................................................................................IV第1章绪论........................................................................................................................................11.1列车自动防护系统的发展历史..............................................................................................11.2列车自动防护系统简介..........................................................................................................21.3论文内容介绍..........................................................................................................................2第2章列车自动防护系统基本概念................................................................................................42.1CTCS........................................................................................................................................42.2可靠性和安全性......................................................................................................................42.3避错技术和容错技术..............................................................................................................52.3.1避错技术..........................................................................................................................52.3.2质量控制技术和环境防护技术......................................................................................52.3.3容错技术..........................................................................................................................52.4故障安全、危险侧故障..........................................................................................................62.5区间和闭塞..............................................................................................................................6第3章ATP系统基本结构...............................................................................................................73.1列控车载概述..........................................................................................................................73.2ATP系统结构..........................................................................................................................73.3列控车载设备主要功能........................................................................................................10第4章列车自动防护系统冗余结构..............................................................................................114.1ATP硬件冗余结构................................................................................................................114.2ATP硬件冗余结构可靠性和安全性的比较...................................